String interpolation with ternary expression breaks highlighting

[mjbvz]

From https://github.com/Microsoft/vscode/issues/36422

Bug

For the code:

"a b c 1 2 3 #{if true is true then "uid" else (alert 'Uid') + " as uid"} a b c 1 2 3"

The interpolated string expression breaks highlighting for the rest of the document:

Note that the a b c 1 2 3 after the expression is not highlighted as a string but instead as an expression

Versions

0.49

[winstliu]

Cannot reproduce on 8873cbc.